GMaps.prototype.createControl = function (options) {
    var control = document.createElement('div');

    control.style.cursor = 'pointer';

    if (options.disableDefaultStyles !== true) {
        control.style.fontFamily = 'Roboto, Arial, sans-serif';
        control.style.fontSize = '11px';
        control.style.boxShadow = 'rgba(0, 0, 0, 0.298039) 0px 1px 4px -1px';
    }

    for (var option in options.style) {
        control.style[option] = options.style[option];
    }

    if (options.id) {
        control.id = options.id;
    }

    if (options.title) {
        control.title = options.title;
    }

    if (options.classes) {
        control.className = options.classes;
    }

    if (options.content) {
        if (typeof options.content === 'string') {
            control.innerHTML = options.content;
        } else if (options.content instanceof HTMLElement) {
            control.appendChild(options.content);
        }
    }

    if (options.position) {
        control.position = google.maps.ControlPosition[options.position.toUpperCase()];
    }

    for (var ev in options.events) {
        (function (object, name) {
            google.maps.event.addDomListener(object, name, function () {
                options.events[name].apply(this, [this]);
            });
        })(control, ev);
    }

    control.index = 1;

    return control;
};

/**
 * Add a custom control to the map UI.
 *
 * @param {object} options - The `options` object should contain:
 * * `style` (object): The keys and values of this object should be valid CSS properties and values.
 * * `id` (string): The HTML id for the custom control.
 * * `classes` (string): A string containing all the HTML classes for the custom control.
 * * `content` (string or HTML element): The content of the custom control.
 * * `position` (string): Any valid [`google.maps.ControlPosition`](https://developers.google.com/maps/documentation/javascript/controls#ControlPositioning) value, in lower or upper case.
 * * `events` (object): The keys of this object should be valid DOM events. The values should be functions.
 * * `disableDefaultStyles` (boolean): If false, removes the default styles for the controls like font (family and size), and box shadow.
 * @returns {HTMLElement}
 */
GMaps.prototype.addControl = function (options) {
    var control = this.createControl(options);

    this.controls.push(control);
    this.map.controls[control.position].push(control);

    return control;
};

/**
 * Remove a control from the map. `control` should be a control returned by `addControl()`.
 *
 * @param {HTMLElement} control - One of the controls returned by `addControl()`.
 * @returns {HTMLElement} the removed control.
 */
GMaps.prototype.removeControl = function (control) {
    var position = null,
        i;

    for (i = 0; i < this.controls.length; i++) {
        if (this.controls[i] == control) {
            position = this.controls[i].position;
            this.controls.splice(i, 1);
        }
    }

    if (position) {
        for (i = 0; i < this.map.controls.length; i++) {
            var controlsForPosition = this.map.controls[control.position];

            if (controlsForPosition.getAt(i) == control) {
                controlsForPosition.removeAt(i);

                break;
            }
        }
    }

    return control;
};
